We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Integrating network toxicology and in vitro validation to elucidate PET microplastic-induced osteoarthritis pathogenesis
AI summary Read the abstract
Scientists found that PET microplastics — tiny plastic particles from common plastic bottles and packaging — may worsen osteoarthritis by triggering inflammation and damaging cartilage cells at the molecular level. Using computer modeling and lab tests on cartilage cells, they pinpointed six specific genes that get switched on or off when exposed to these plastic particles, offering early clues about how everyday plastic pollution might contribute to joint disease. While this is still early-stage lab research (not yet tested in humans), it adds to growing evidence that microplastics in our environment could have real effects on joint health.
Objective This study aims to elucidate the molecular mechanisms through which PET microplastics (PET-MP) influence osteoarthritis (OA) pathogenesis by integrating network toxicology, machine learning, and in vitro experimental validation. Methods Differential gene expression analysis and WGCNA were applied to multiple OA datasets to identify disease-related targets. PET-MP biological targets were predicted via ChEMBL, SwissTargetPrediction, and PharmMapper. Overlapping targets were screened using machine learning algorithms, and molecular docking was performed to assess binding interactions. In vitro validation including immunofluorescence, qRT-PCR, and Western blot was conducted in PET-MP-treated chondrocytes. Results A total of 452 PET-associated targets were identified, with 12 core PET-MP-OA genes established through intersection analysis. Functional enrichment implicated the NF-κB and IL-17 signaling pathways. Machine learning screening based on feature importance and SHAP values prioritized six hub genes: AKR1A1, INSR, KIF11, MMP1, KCNN4, and TK1. Molecular docking generated predicted AutoDock Vina scores ranging from −3.893 to −7.434 kcal/mol. In vitro experiments validated upregulation of AKR1A1, MMP1, KCNN4, KIF11, and TK1, and downregulation of INSR in chondrocytes, consistent with bioinformatics predictions. Conclusion PET-MP may promote OA progression by disrupting molecular pathways related to inflammation, oxidative stress, and cartilage degradation. The identified hub genes offer new insights into microplastic toxicology in joint disease and represent potential therapeutic targets and biomarkers for PET-MP-induced OA.
More Papers Like This
Exploration of potential targets and toxicological mechanisms of microplastic exposure-induced osteoarthritis based on network toxicology, molecular docking and experimental validation
AI summary Read the abstract
Scientists found that tiny plastic particles (microplastics), which we regularly ingest through food and air, may damage joint cartilage and contribute to osteoarthritis by disrupting specific genes involved in inflammation and cell damage. Using computer modeling and lab experiments on cartilage cells, researchers also found that quercetin—a natural compound found in fruits and vegetables—may help protect against this damage, though more research is needed before it could be recommended as a treatment. This study adds to growing concerns about how everyday plastic exposure might affect joint health, while pointing toward a possible natural way to help defend against it.
Unveiling the pathogenic mechanisms of polyethylene terephthalate-microplastic-driven osteoarthritis and rheumatoid arthritis: PTGS2 signaling hub-oriented toxicity profiling
AI summary Read the abstract
Researchers used computational analysis to investigate how PET microplastics might contribute to joint diseases like osteoarthritis and rheumatoid arthritis. They identified the PTGS2 gene, involved in inflammation, as a central hub connecting microplastic exposure to joint disease pathways. The study suggests that microplastics may worsen joint inflammation through specific molecular mechanisms, though further laboratory and clinical research is needed to confirm these computational findings.
Integrated network toxicology, machine learning, molecular docking, single-cell transcriptomics and experimental validation to elucidate mechanism of polyethylene terephthalate microplastics contributing to intervertebral disc degeneration
AI summary Read the abstract
Scientists found that tiny plastic particles from PET (the plastic used in water bottles) can damage the cushioning discs between your spinal bones, using lab experiments on spinal disc cells. The microplastics triggered cell stress, damaged the disc's structural material, and activated specific genes linked to disc breakdown—suggesting these ubiquitous plastic particles might contribute to back pain and spinal degeneration over time. While this research was done on cells rather than in living people, it adds to growing concerns about how microplastics in our environment could affect long-term health.
The impact of polyethylene terephthalate microplastics on the pathogenesis of atherosclerosis: Focusing on network toxicology and target gene detection
AI summary Read the abstract
Researchers used network toxicology and gene analysis to investigate how PET microplastics may influence atherosclerosis, the buildup of plaque in arteries. They identified specific genes involved in inflammation and immune cell signaling that are affected by both PET exposure and atherosclerosis development. The study suggests that microplastic exposure could worsen cardiovascular disease through shared inflammatory pathways.
Polystyrene microplastics drive chondrotoxicity in osteoarthritis through inducing ER stress and apoptosis via NFKB1 activation
AI summary Read the abstract
Scientists found that tiny plastic particles called microplastics—already known to accumulate in human joints—can trigger a chain reaction that damages cartilage cells, worsening a protein called NFKB1 that drives inflammation and cell death. This research, done in cells rather than in people, suggests microplastic pollution could be a hidden contributor to osteoarthritis, the joint disease that causes pain and stiffness in millions of people, and it points to a possible drug target to block this damage in the future.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.